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DM9621 датащи(PDF) 38 Page - Davicom Semiconductor, Inc.

номер детали DM9621
подробное описание детали  USB2.0 to 10/100M Fast Ethernet Controller
PDF  66 Pages
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производитель  DAVICOM [Davicom Semiconductor, Inc.]
домашняя страница  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9621 датащи(HTML) 38 Page - Davicom Semiconductor, Inc.

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DM9621
USB2.0 to Fast Ethernet Controller
Preliminary
38
Version: DM9621 -14-DS-P02
February 23, 2011
Force to 0, in application.
0
PD_value
0,RW
Power down control value
Decision the value of each field Register 13H
1: power down
0: normal
6.13 DSP Control (DSP_CTRL) – 1BH
Bit
Bit Name
Default
Description
15~0
DSP_CTRL
0, RW
DSP CONTROL
For internal testing only
6.14 Power Saving Control Register (PSCR) – 1DH
Bit
Bit Name
Default
Description
15-12
RESERVED
0,RO
RESERVED
11
PREAMBLEX
0,RW
Preamble Saving Control
when both bit 10and 11 of register 14H are set, the 10BASE-T
transmit preamble count is reduced.
1: 12-bit preamble is reduced.
0: 22-bit preamble is reduced.
10
AMPLITUDE
0,RW
Transmit Amplitude Control Disabled
1: when cable is unconnected with link partner, the TX amplitude is
reduced for power saving.
0: disable Transmit amplitude reduce function
9
TX_PWR
0.RW
Transmit Power Saving Control Disabled
1: when cable is unconnected with link partner, the driving current
of transmit is reduced for power saving.
0: disable transmit driving power saving function
8-0
RESERVED
0,RO
RESERVED



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